Roberta is studying the temperatures of the Arctic over a period of time. The first day, the temperature was -1.5 degrees Celsius. The next day, the temperature was 0.25 of that. What was the temperature Roberta recorded on the second day?

a rotation about point l

step-by-step explanation:

quizlet

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

the answer is d

hope this